Get The Basics On NoSQL Databases: Graph Databases

Graph databases powered the Paradise Papers reporting and other complex data research. Shutterstock

Graph databases facilitate discovery and analysis closely connected facts.

This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big Data Analytics.

What is a graph database?

Graph databases organize facts into connected bundles, called “nodes.” Connections between the nodes are called “edges,” or “relationships.”

How is a graph database different from a relation database?

Each node contains several pieces of information that go together. For example, a single node might include a product name, description, price and product code. Another might have information about a customer, such as name and account number.

This structure is flexible. Each node can contain any combination of facts, and edges are needed only when there’s a meaningful connection between them.

What’s are graph databases good for?

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